package com.qd.system.service.log;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cdqidi.constant.ConstantDto;
import com.cdqidi.db.BaseService;
import com.cdqidi.dto.CacheKey;
import com.cdqidi.excel.ExcelExport;
import com.cdqidi.excel.util.ExportPage;
import com.cdqidi.exception.ApiException;
import com.cdqidi.util.RedisTemplateUtil;
import com.qd.common.sys.domain.entity.log.LoginLogDTO;
import com.qd.system.mapper.LoginLogMapper;
import com.qd.system.model.LoginLog;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

import static java.util.stream.Collectors.toList;

/**
 * 登录日志
 *
 * @author sjk
 */
@Service
@Slf4j
@RequiredArgsConstructor
public class LoginLogService extends BaseService<LoginLogMapper, LoginLog> {

    private static final String PREFIX_ID = "sys_login_log_logId_{0}";

    private final RedisTemplateUtil<LoginLog> redisTemplateUtil;
    private final HttpServletResponse response;

    /**
     * 保存
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public LoginLogDTO save(LoginLogDTO dto) {
        final LoginLog model = dtoToModel(dto);
        try {
            if (super.save(model)) {
                return modelToDto(model);
            }
            throw new ApiException("添加失败");
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 修改
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public LoginLogDTO update(LoginLogDTO dto) {
        final LoginLog historyModel = Optional.ofNullable(getById(dto.getLogId())).orElseThrow(() -> new ApiException("ID不存在,不能更新"));
        final LoginLog model = dtoToModel(dto);
        try {
            if (super.updateById(model)) {
                return modelToDto(model);
            }
            throw new ApiException("更新失败");
        } finally {
            clearCache(historyModel);
            historyModel.freeData();
            model.freeData();
        }
    }

    /**
     * 删除，单个
     *
     * @param logId 主键
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeById(String logId) {
        final LoginLog model = Optional.ofNullable(getById(logId)).orElseThrow(() -> new ApiException("数据不存在,不能删除"));
        try {
            if (!super.removeById(logId)) {
                throw new ApiException("删除失败");
            }
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 批量删除
     *
     * @param ids 主键集合
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeBatchIds(List<String> ids) {
        List<LoginLog> historyModelList = checkIds(ids);
        try {
            if (!super.removeByIds(ids)) {
                throw new ApiException("批量删除失败");
            }
        } finally {
            clearCaches(historyModelList);
            historyModelList.clear();
        }
    }

    /**
     * 根据传入对象构建查询参数，判断是否存在
     *
     * @param dto 参数
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExists(LoginLogDTO dto) {
        final QueryWrapper<LoginLog> queryWrapper = createQueryWrapper(dto);
        final boolean exists = super.count(queryWrapper) > 0;
        queryWrapper.clear();
        return exists;
    }

    /**
     * 根据主键判断数据是否存在
     *
     * @param logId 主键
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExistsById(String logId) {
        boolean exists = false;
        if (StringUtils.hasLength(logId)) {
            final LoginLog model = getById(logId);
            exists = (null != model);
            if (exists) {
                model.freeData();
            }
        }
        return exists;
    }

    /**
     * 根据主键获取数据
     *
     * @param logId 主键
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public LoginLog getById(String logId) {
        final String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, logId);
        return redisTemplateUtil.get(new CacheKey().setKey(key).setTimeout(ConstantDto.REDIS_TIME_OUT_DAY), () -> super.getById(logId), LoginLog.class);
    }

    /**
     * 根据主键获取数据
     *
     * @param logId 主键
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public LoginLogDTO getByIdDto(String logId) {
        final LoginLog model = getById(logId);
        if (null != model) {
            return modelToDto(model);
        }
        return null;
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public LoginLog getOne(LoginLogDTO dto) {
        final QueryWrapper<LoginLog> queryWrapper = createQueryWrapper(dto);
        final LoginLog model = super.getOne(queryWrapper);
        queryWrapper.clear();
        return model;
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public LoginLogDTO getOneDto(LoginLogDTO dto) {
        final LoginLog model = getOne(dto);
        if (null == model) {
            return null;
        }
        final LoginLogDTO newDto = modelToDto(model);
        model.freeData();
        return newDto;
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据
     */
    @Transactional(readOnly = true)
    public List<LoginLog> getList(LoginLogDTO dto) {
        final QueryWrapper<LoginLog> queryWrapper = createQueryWrapper(dto);
        final List<LoginLog> list = super.list(queryWrapper);
        queryWrapper.clear();
        return list;
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据，转换成页面对象
     */
    @Transactional(readOnly = true)
    public List<LoginLogDTO> getListDto(LoginLogDTO dto) {
        return modelToDtoList(getList(dto));
    }

    /**
     * 分页数据
     *
     * @param page 分页对象
     * @param dto  查询参数
     * @return 分页信息
     */
    @Transactional(readOnly = true)
    public IPage<LoginLogDTO> page(Page<LoginLog> page, LoginLogDTO dto) {
        final QueryWrapper<LoginLog> queryWrapper = createQueryWrapper(dto, "log.");
        final IPage<LoginLogDTO> iPage = baseMapper.page(page, queryWrapper);
        queryWrapper.clear();
        return iPage;
    }

    /**
     * 导出Excel
     *
     * @param query 查询条件
     * @throws IOException 异常
     */
    @Transactional(readOnly = true)
    public void export(LoginLogDTO query) throws IOException {
        final ExportPage<LoginLog, LoginLogDTO> exportPage = new ExportPage<>();
        try {
            final List<LoginLogDTO> list = exportPage.getAllForPage(page -> page(page, query).getRecords());
            try {
                ExcelExport.downloadExcel(response, LoginLogDTO.class, () -> list);
            } catch (IOException e) {
                log.error("导出失败", e);
                throw new ApiException("导出失败");
            }
        } finally {
            exportPage.freeData();
        }

    }

    /**
     * 清空缓存
     *
     * @param model 数据库对象
     */
    public void clearCache(LoginLog model) {
        if (null == model) {
            return;
        }
        redisTemplateUtil.deleteByKey(RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getLogId()));
    }

    /**
     * 批量清空缓存
     *
     * @param list 数据库对象
     */
    public void clearCaches(List<LoginLog> list) {
        if (null == list || list.isEmpty()) {
            return;
        }
        List<String> ids = list.stream().map(model -> RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getLogId())).collect(toList());
        if (!ids.isEmpty()) {
            redisTemplateUtil.deleteByKey(ids);
            ids.clear();
        }
    }

    /**
     * 数据库对象转页面对象
     *
     * @param model 数据库对象
     * @return 页面对象
     */
    public LoginLogDTO modelToDto(LoginLog model) {
        if (null == model) {
            return null;
        }
        final LoginLogDTO dto = new LoginLogDTO();
        dto.setLogId(model.getLogId());
        dto.setUserId(model.getUserId());
        dto.setUserName(model.getUserName());
        dto.setAccount(model.getAccount());
        dto.setUserIp(model.getUserIp());
        dto.setBrowser(model.getBrowser());
        dto.setOs(model.getOs());
        dto.setStatus(model.getStatus());
        dto.setMessage(model.getMessage());
        dto.setLoginTime(model.getLoginTime());
        dto.setOrgName(model.getOrgName());
        dto.setOrgId(model.getOrgId());
        return dto;
    }

    /**
     * 页面对象转数据库对象
     *
     * @param dto 页面对象
     * @return 数据库对象
     */
    public LoginLog dtoToModel(LoginLogDTO dto) {
        if (null == dto) {
            return null;
        }
        final LoginLog model = new LoginLog();
        model.setLogId(dto.getLogId());
        model.setUserId(dto.getUserId());
        model.setUserName(dto.getUserName());
        model.setAccount(dto.getAccount());
        model.setUserIp(dto.getUserIp());
        model.setBrowser(dto.getBrowser());
        model.setOs(dto.getOs());
        model.setStatus(dto.getStatus());
        model.setMessage(dto.getMessage());
        model.setLoginTime(dto.getLoginTime());
        model.setOrgName(dto.getOrgName());
        model.setOrgId(dto.getOrgId());
        return model;
    }

    /**
     * 数据库对象转页面对象
     *
     * @param list 数据库对象
     * @return 页面对象
     */
    public List<LoginLogDTO> modelToDtoList(List<LoginLog> list) {
        if (null == list) {
            return Collections.emptyList();
        }
        return list.stream().map(this::modelToDto).collect(toList());
    }

    /**
     * 页面对象转数据库对象
     *
     * @param list 页面对象
     * @return 数据库对象
     */
    public List<LoginLog> dtoToModelList(List<LoginLogDTO> list) {
        if (null == list) {
            return Collections.emptyList();
        }
        return list.stream().map(this::dtoToModel).collect(toList());
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto 查询参数，不为空的属性会被自动加入
     */
    public QueryWrapper<LoginLog> createQueryWrapper(LoginLogDTO dto) {
        return createQueryWrapper(dto, "");
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto        查询参数，不为空的属性会被自动加入
     * @param tableAlias 表别名
     */
    public QueryWrapper<LoginLog> createQueryWrapper(LoginLogDTO dto, String tableAlias) {
        final QueryWrapper<LoginLog> queryWrapper = new QueryWrapper<>();
        if (null != dto) {
            if (StringUtils.hasLength(tableAlias) && tableAlias.charAt(tableAlias.length() - 1) != '.') {
                tableAlias += ".";
            }
            if (StringUtils.hasLength(dto.getUserId())) {
                queryWrapper.eq(tableAlias + "user_id", dto.getUserId());
            }
            if (StringUtils.hasLength(dto.getUserName())) {
                queryWrapper.like(tableAlias + "user_name", dto.getUserName());
            }
            if (StringUtils.hasLength(dto.getAccount())) {
                queryWrapper.eq(tableAlias + "account", dto.getAccount());
            }
            if (StringUtils.hasLength(dto.getOrgName())) {
                queryWrapper.like(tableAlias + "org_name", dto.getOrgName());
            }
            if (StringUtils.hasLength(dto.getOrgId())) {
                queryWrapper.eq(tableAlias + "org_id", dto.getOrgId());
            }
            if (StringUtils.hasLength(dto.getUserIp())) {
                queryWrapper.eq(tableAlias + "user_ip", dto.getUserIp());
            }
            if (StringUtils.hasLength(dto.getBrowser())) {
                queryWrapper.eq(tableAlias + "browser", dto.getBrowser());
            }
            if (StringUtils.hasLength(dto.getOs())) {
                queryWrapper.eq(tableAlias + "os", dto.getOs());
            }
            if (StringUtils.hasLength(dto.getStatus())) {
                queryWrapper.eq(tableAlias + "status", dto.getStatus());
            }
            if (StringUtils.hasLength(dto.getMessage())) {
                queryWrapper.like(tableAlias + "message", dto.getMessage());
            }
            if (StringUtils.hasLength(dto.getBeginTime())) {
                queryWrapper.apply("date_format(" + tableAlias + "login_time,'%Y-%m-%d') >= {0}", dto.getBeginTime());
            }
            if (StringUtils.hasLength(dto.getEndTime())) {
                queryWrapper.apply("date_format(" + tableAlias + "login_time,'%Y-%m-%d') <= {0}", dto.getEndTime());
            }
        }
        queryWrapper.orderByDesc(tableAlias + "login_time");
        return queryWrapper;
    }

    /**
     * 批量检查主键在数据库中是否存在
     *
     * @param ids 主键集合
     * @return 主键查询出来的集合
     */
    public List<LoginLog> checkIds(List<String> ids) {
        if (null == ids || ids.isEmpty()) {
            throw new ApiException("ids不能为空");
        }
        final List<LoginLog> list = super.listByIds(ids);
        if (list.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(ids.toArray()));
        }
        if (ids.size() == list.size()) {
            return list;
        }
        List<String> dbIds = list.stream().map(LoginLog::getLogId).collect(toList());
        final List<String> notExistsList = ids.stream().filter(id -> !dbIds.contains(id)).collect(toList());
        dbIds.clear();
        if (!notExistsList.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(notExistsList.toArray()));
        }
        return list;
    }
}